Home / 636,424,805.67-878,259,886.35-354,162,411.76

Finding the Fourth Proportional to 636,424,805.67, 878,259,886.35 and 354,162,411.76

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Solution

The fourth proportional to 636,424,805.67, 878,259,886.35 and 354,162,411.76 is: 488,740,597.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,424,805.67 : 878,259,886.35 = 354,162,411.76 : x
  2. Step 2: Convert to fraction form
    636,424,805.67/878,259,886.35 = 354,162,411.76/x
  3. Step 3: Cross multiply
    636,424,805.67x = 878,259,886.35 × 354,162,411.76
  4. Step 4: Simplify right side
    636,424,805.67x = 311,046,639,497,388,224
  5. Step 5: Solve for x
    x = 311,046,639,497,388,224/636,424,805.67
  6. Step 6: Final answer
    x = 488,740,597.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.